Individuals with somatization disorder report suffering constantly and often for many years from many physical illnesses. However, they do not have any specific, diagnosed medical illnesses that can explain the presence or severity of their symptoms. Still, these symptoms cause distress and negatively impact their ability to function day to day.



The cause of somatization disorder is not known.

There is no medical illness to explain the symptoms, so the disorder is believed to be due to mental and emotional causes. Somatization disorder may also be due to brain processing.


Risk Factors  

Somatization disorder is more common in American women, but incidence varies among different cultures. Other factors that may increase your chance of developing somatization disorder include:

  • Family history of somatization disorder
  • History of psychological trauma or early experiences with physical illness, hospitalization and medical treatment
  • Lower social class with little education
  • Individuals who may be extremely emotional (also known histrionic)
  • Individuals with antisocial personality disorder, substance abuse disorders, anxiety, depression, or panic disorders
  • Individuals who are unable to express their emotional distress through language (due to neurological disorders or intellectual disability), or in cultures that discourage the communication of emotional distress


The physical suffering that people with somatization disorder experience usually begin in the early adult years. It can also begin during the teenage years. Individuals suffer for years, often leading to many unnecessary medical tests and treatments.

People with somatization disorder complain about many physical illnesses that involve many different parts of their body. A diagnosis of somatization disorder requires experiencing an assortment of symptoms that occur over several years.

Somatization disorder may cause:

  • Pain symptoms in any part of the body, such as back, joints chest, or head
  • Gastrointestinal symptoms other than pain, such as nausea, vomiting, bloating, or diarrhea
  • Sexual symptoms other than pain, such as erectile difficulty, irregular menstrual periods, or excessive menstrual bleeding
  • Neurological symptoms, such as:
    • Being off-balance
    • Paralysis
    • Weakness
    • Trouble swallowing
    • Loss of voice
    • Inability to control the need to urinate
    • Delusions or hallucinations
    • Loss of touch
    • Unable to feel pain
    • Amnesia
    • Temporary blindness or deafness
    • Seizures
    Nervous System  
    Nervous system posterior 3D

    An emotional event may trigger physical symptoms, sometimes through peripheral nerv